[RFC] Add DMA_RESV_USAGE flags

Daniel Stone daniel at fooishbar.org
Tue May 18 13:26:15 UTC 2021


On Tue, 18 May 2021 at 13:49, Christian König
<ckoenig.leichtzumerken at gmail.com> wrote:
> Am 18.05.21 um 07:59 schrieb Daniel Vetter:
> > First step in fixing that is (and frankly was since years) to fix the
> > amdgpu CS so winsys can pass along a bunch of flags about which CS
> > should actually set the exclusive fence, so that you stop oversyncing
> > so badly. Ofc old userspace needs to keep oversyncing forever, no way
> > to fix that.
>
> Exactly that is what we don't want to do because the winsys has no idea
> when to sync and when not to sync.

Hey, we're typing that out as fast as we can ... it's just that you
keep reinventing sync primitives faster than we can ship support for
them :P


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